Spectral study on the inclusion complex of cryptophane-E and CHCl3

Caihong Zhang; Weili Shen; Ruying Fan; Guomei Zhang; Shaomin Shuang; Chuan Dong; Martin M.F. Choi

doi:10.1016/j.saa.2009.10.004

Spectral study on the inclusion complex of cryptophane-E and CHCl₃

Caihong Zhang, Weili Shen, Ruying Fan, Guomei Zhang, Shaomin Shuang, Chuan Dong^*, Martin M.F. Choi

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

5 Citations (Scopus)

Abstract

Cryptophane-E was synthesized from vanillin by a three-step method, and its absorption and fluorescence spectroscopic properties were determined. Two absorption bands at about 245-260 and 280-290 nm were observed for cryptophane-E and the fluorescence emission maxima were at 320-330 nm depending on the solvent used. The interaction of cryptophane-E with CHCl₃ was studied in detail by absorption and fluorescence spectroscopies. The results showed that cryptophane-E and CHCl₃ can easily form a stable 1:1 host-guest inclusion complex. Their binding constant (K) was determined by Benesi-Hildebrand equation and the nonlinear least squares fit method. The binding constant is largest in ethyl acetate, followed by dioxane and with acetonitrile as the smallest. In addition, the effect of guest volume on the host-guest inclusion complex was investigated. Guest molecules including CH₂Cl₂ and CCl₄ were unable to form inclusion complex with cryptophane-E because of sizes mismatching with the host cavity.

Original language	English
Pages (from-to)	157-161
Number of pages	5
Journal	Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
Volume	75
Issue number	1
DOIs	https://doi.org/10.1016/j.saa.2009.10.004
Publication status	Published - Jan 2010

Scopus Subject Areas

Analytical Chemistry
Atomic and Molecular Physics, and Optics
Instrumentation
Spectroscopy

User-Defined Keywords

Absorption
CHCl
Cryptophane-E
Fluorescence
Inclusion complex

Access to Document

10.1016/j.saa.2009.10.004

Cite this

@article{29bc79fbdd604373abe485527825adab,

title = "Spectral study on the inclusion complex of cryptophane-E and CHCl3",

abstract = "Cryptophane-E was synthesized from vanillin by a three-step method, and its absorption and fluorescence spectroscopic properties were determined. Two absorption bands at about 245-260 and 280-290 nm were observed for cryptophane-E and the fluorescence emission maxima were at 320-330 nm depending on the solvent used. The interaction of cryptophane-E with CHCl3 was studied in detail by absorption and fluorescence spectroscopies. The results showed that cryptophane-E and CHCl3 can easily form a stable 1:1 host-guest inclusion complex. Their binding constant (K) was determined by Benesi-Hildebrand equation and the nonlinear least squares fit method. The binding constant is largest in ethyl acetate, followed by dioxane and with acetonitrile as the smallest. In addition, the effect of guest volume on the host-guest inclusion complex was investigated. Guest molecules including CH2Cl2 and CCl4 were unable to form inclusion complex with cryptophane-E because of sizes mismatching with the host cavity.",

keywords = "Absorption, CHCl, Cryptophane-E, Fluorescence, Inclusion complex",

author = "Caihong Zhang and Weili Shen and Ruying Fan and Guomei Zhang and Shaomin Shuang and Chuan Dong and Choi, {Martin M.F.}",

year = "2010",

month = jan,

doi = "10.1016/j.saa.2009.10.004",

language = "English",

volume = "75",

pages = "157--161",

journal = "Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy",

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publisher = "Elsevier",

number = "1",

}

TY - JOUR

T1 - Spectral study on the inclusion complex of cryptophane-E and CHCl3

AU - Zhang, Caihong

AU - Shen, Weili

AU - Fan, Ruying

AU - Zhang, Guomei

AU - Shuang, Shaomin

AU - Dong, Chuan

AU - Choi, Martin M.F.

PY - 2010/1

Y1 - 2010/1

N2 - Cryptophane-E was synthesized from vanillin by a three-step method, and its absorption and fluorescence spectroscopic properties were determined. Two absorption bands at about 245-260 and 280-290 nm were observed for cryptophane-E and the fluorescence emission maxima were at 320-330 nm depending on the solvent used. The interaction of cryptophane-E with CHCl3 was studied in detail by absorption and fluorescence spectroscopies. The results showed that cryptophane-E and CHCl3 can easily form a stable 1:1 host-guest inclusion complex. Their binding constant (K) was determined by Benesi-Hildebrand equation and the nonlinear least squares fit method. The binding constant is largest in ethyl acetate, followed by dioxane and with acetonitrile as the smallest. In addition, the effect of guest volume on the host-guest inclusion complex was investigated. Guest molecules including CH2Cl2 and CCl4 were unable to form inclusion complex with cryptophane-E because of sizes mismatching with the host cavity.

AB - Cryptophane-E was synthesized from vanillin by a three-step method, and its absorption and fluorescence spectroscopic properties were determined. Two absorption bands at about 245-260 and 280-290 nm were observed for cryptophane-E and the fluorescence emission maxima were at 320-330 nm depending on the solvent used. The interaction of cryptophane-E with CHCl3 was studied in detail by absorption and fluorescence spectroscopies. The results showed that cryptophane-E and CHCl3 can easily form a stable 1:1 host-guest inclusion complex. Their binding constant (K) was determined by Benesi-Hildebrand equation and the nonlinear least squares fit method. The binding constant is largest in ethyl acetate, followed by dioxane and with acetonitrile as the smallest. In addition, the effect of guest volume on the host-guest inclusion complex was investigated. Guest molecules including CH2Cl2 and CCl4 were unable to form inclusion complex with cryptophane-E because of sizes mismatching with the host cavity.

KW - Absorption

KW - CHCl

KW - Cryptophane-E

KW - Fluorescence

KW - Inclusion complex

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